<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Fetch the next row of a result set as an object</title>
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-base.css" />
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-medium.css" />

 </head>
 <body class="docs"><div class="navbar navbar-fixed-top">
  <div class="navbar-inner clearfix">
    <ul class="nav" style="width: 100%">
      <li style="float: left;"><a href="mysqli-result.fetch-fields.html">« mysqli_result::fetch_fields</a></li>
      <li style="float: right;"><a href="mysqli-result.fetch-row.html">mysqli_result::fetch_row »</a></li>
    </ul>
  </div>
</div>
<div id="breadcrumbs" class="clearfix">
  <ul class="breadcrumbs-container">
    <li><a href="index.html">PHP Manual</a></li>
    <li><a href="class.mysqli-result.html">mysqli_result</a></li>
    <li>Fetch the next row of a result set as an object</li>
  </ul>
</div>
<div id="layout">
  <div id="layout-content"><div id="mysqli-result.fetch-object" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mysqli_result::fetch_object</h1>
  <h1 class="refname">mysqli_fetch_object</h1>
  <p class="verinfo">(PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">mysqli_result::fetch_object</span> -- <span class="refname">mysqli_fetch_object</span> &mdash; <span class="dc-title">Fetch the next row of a result set as an object</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mysqli-result.fetch-object-description">
  <h3 class="title">说明</h3>
  <p class="para">面向对象风格</p>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>mysqli_result::fetch_object</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$class</code><span class="initializer"> = &quot;stdClass&quot;</span></span>, <span class="methodparam"><span class="type">array</span> <code class="parameter">$constructor_args</code><span class="initializer"> = []</span></span>): <span class="type"><span class="type">object</span>|<span class="type">null</span>|<span class="type"><span class="type false">false</span></span></span></div>

  <p class="para rdfs-comment">过程化风格</p>
  <div class="methodsynopsis dc-description"><span class="methodname"><strong>mysqli_fetch_object</strong></span>(<span class="methodparam"><span class="type"><a href="class.mysqli-result.html" class="type mysqli_result">mysqli_result</a></span> <code class="parameter">$result</code></span>, <span class="methodparam"><span class="type">string</span> <code class="parameter">$class</code><span class="initializer"> = &quot;stdClass&quot;</span></span>, <span class="methodparam"><span class="type">array</span> <code class="parameter">$constructor_args</code><span class="initializer"> = []</span></span>): <span class="type"><span class="type">object</span>|<span class="type">null</span>|<span class="type"><span class="type false">false</span></span></span></div>

  <p class="para rdfs-comment">
   Fetches one row of data from the result set and returns it as an object,
   where each property represents the name of the result set&#039;s column.
   Each subsequent call to this function will return the next row within the
   result set, or <strong><code>null</code></strong> if there are no more rows.
  </p>
  <p class="para">
   If two or more columns of the result have the same name, the last
   column will take precedence and overwrite any previous data. To
   access multiple columns with the same name,
   <span class="function"><a href="mysqli-result.fetch-row.html" class="function">mysqli_fetch_row()</a></span> may be used to fetch the numerically
   indexed array, or aliases may be used in the SQL query select list to give
   columns different names.
  </p>
  <blockquote class="note"><p><strong class="note">注意</strong>: 
   <span class="simpara">
     This function sets the properties
     of the object before calling the object constructor.
   </span>
  </p></blockquote>
  <blockquote class="note"><p><strong class="note">注意</strong>: <span class="simpara">此函数返回的字段名<em class="emphasis">大小写敏感</em>。</span></p></blockquote>
  <blockquote class="note"><p><strong class="note">注意</strong>: <span class="simpara">此函数将 NULL 字段设置为 PHP <strong><code>null</code></strong> 值。</span></p></blockquote>
 </div>


 <div class="refsect1 parameters" id="refsect1-mysqli-result.fetch-object-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    <dt>

<code class="parameter">result</code></dt>
<dd>
<p class="para">仅以过程化样式：由
<span class="function"><a href="mysqli.query.html" class="function">mysqli_query()</a></span>、<span class="function"><a href="mysqli.store-result.html" class="function">mysqli_store_result()</a></span>、
<span class="function"><a href="mysqli.use-result.html" class="function">mysqli_use_result()</a></span>、<span class="function"><a href="mysqli-stmt.get-result.html" class="function">mysqli_stmt_get_result()</a></span> 返回的 <span class="classname"><a href="class.mysqli-result.html" class="classname">mysqli_result</a></span> 对象。</p></dd>

    
     <dt>
<code class="parameter">class</code></dt>

     <dd>

      <p class="para">
       The name of the class to instantiate, set the properties of and return.
       If not specified, a <span class="classname"><a href="class.stdclass.html" class="classname">stdClass</a></span> object is returned.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">constructor_args</code></dt>

     <dd>

      <p class="para">
       An optional <span class="type">array</span> of parameters to pass to the constructor
       for <code class="parameter">class</code> objects.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-mysqli-result.fetch-object-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an object representing the fetched row, where each property
   represents the name of the result set&#039;s column, <strong><code>null</code></strong> if there
   are no more rows in the result set,  或者在失败时返回 <strong><code>false</code></strong>.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-mysqli-result.fetch-object-changelog">
  <h3 class="title">更新日志</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>版本</th>
      <th>说明</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>8.0.0</td>
      <td>
       <code class="parameter">constructor_args</code> now accepts <code class="literal">[]</code> for constructors with 0 parameters;
       previously an exception was thrown.
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 examples" id="refsect1-mysqli-result.fetch-object-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1531">
   <p><strong>示例 #1 <span class="methodname"><strong>mysqli_result::fetch_object()</strong></span> example</strong></p>
   <div class="example-contents"><p>面向对象风格</p></div>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br />mysqli_report</span><span style="color: #007700">(</span><span style="color: #0000BB">MYSQLI_REPORT_ERROR&nbsp;</span><span style="color: #007700">|&nbsp;</span><span style="color: #0000BB">MYSQLI_REPORT_STRICT</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$mysqli&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br />&nbsp;<br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode&nbsp;FROM&nbsp;City&nbsp;ORDER&nbsp;BY&nbsp;ID&nbsp;DESC"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;fetch&nbsp;object&nbsp;array&nbsp;*/<br /></span><span style="color: #007700">while&nbsp;(</span><span style="color: #0000BB">$obj&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetch_object</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">Name</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">CountryCode</span><span style="color: #007700">);<br />}</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>过程化风格</p></div>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br />mysqli_report</span><span style="color: #007700">(</span><span style="color: #0000BB">MYSQLI_REPORT_ERROR&nbsp;</span><span style="color: #007700">|&nbsp;</span><span style="color: #0000BB">MYSQLI_REPORT_STRICT</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode&nbsp;FROM&nbsp;City&nbsp;ORDER&nbsp;BY&nbsp;ID&nbsp;DESC"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;fetch&nbsp;associative&nbsp;array&nbsp;*/<br /></span><span style="color: #007700">while&nbsp;(</span><span style="color: #0000BB">$obj&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_fetch_object</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">Name</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">CountryCode</span><span style="color: #007700">);<br />}</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>以上例程的输出类似于：</p></div>
   <div class="example-contents screen">
<div class="cdata"><pre>
Pueblo (USA)
Arvada (USA)
Cape Coral (USA)
Green Bay (USA)
Santa Clara (USA)
</pre></div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-mysqli-result.fetch-object-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="mysqli-result.fetch-array.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_array()</a> - Fetch the next row of a result set as an associative, a numeric array, or both</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-assoc.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_assoc()</a> - Fetch the next row of a result set as an associative array</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-column.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_column()</a> - Fetch a single column from the next row of a result set</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-row.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_row()</a> - Fetch the next row of a result set as an enumerated array</span></li>
    <li class="member"><span class="function"><a href="mysqli.query.html" class="function" rel="rdfs-seeAlso">mysqli_query()</a> - 对数据库执行一次查询</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.data-seek.html" class="function" rel="rdfs-seeAlso">mysqli_data_seek()</a> - Adjusts the result pointer to an arbitrary row in the result</span></li>
   </ul>
  </p>
 </div>


</div></div></div></body></html>